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The Importance of Exact Calculations in Banking Calculations
It depends on your use case whether that matters or not. It's mostly in banking calculations where you wind up with long series of plus and minus. I think it's required to be in exact specifically in the way that decimals are like base 10 No, what if there's if there's three for dollar? I don't think you can do that.
Array Cast - August 4, 2023
Show Notes
Thanks to Bob Therriault and AdámBrudzewsky for gathering these links:
[01] 00:01:49 Stephen's book contributions sjt AT 5jt DOT com
Dyalog User Meeting https://www.dyalog.com/user-meetings/dyalog23.htm
[02] 00:04:19 Henry ArrayCast episodes
ArrayCast Episode #6 https://www.arraycast.com/episodes/episode-06-henry-richs-deep-dive-into-j
ArrayCast Episode #18 https://www.arraycast.com/episodes/episode18-henry-rich-presents-j903
ArrayCast Episode #48 https://www.arraycast.com/episodes/episode48-henry-rich
ArrayCast Episode #50 https://www.arraycast.com/episodes/episode50-fold
APL Farm Discord https://aplwiki.com/wiki/APL_Farm
[03] 00:10:40 Todd Rundgren https://en.wikipedia.org/wiki/Todd_Rundgren
[04] 00:13:00 J's Extended Integer type https://code.jsoftware.com/wiki/Vocabulary/Constants#Extended_Integers
lib.gmp https://gmplib.org/
Infinity in J https://code.jsoftware.com/wiki/Vocabulary/Constants#Infinity
Endianness https://en.wikipedia.org/wiki/Endianness
[05] 00:20:25 NaN or Indeterminate in J https://code.jsoftware.com/wiki/Essays/Indeterminate
Null in K https://k.miraheze.org/wiki/Null%3F
[06] 00:25:46 Fixed point type https://en.wikipedia.org/wiki/Fixed-point_arithmetic
[07] 00:29:30 Floating Point Math https://0.30000000000000004.com
NARS2000 https://aplwiki.com/wiki/NARS2000
J constants https://code.jsoftware.com/wiki/Guides/Constants
[08] 00:35:20 Hilbert Matrix https://en.wikipedia.org/wiki/Hilbert_matrix
[09] 00:37:00 Kamila Lisp https://aplwiki.com/wiki/KamilaLisp
Euler's Formula https://en.wikipedia.org/wiki/Euler%27s_formula
Dyalog Idioms https://help.dyalog.com/latest/#Language/Introduction/Idiom%20Recognition/Idiom%20List.htm
Roger's Comments https://www.dyalog.com/blog/2015/12/apl-puns/
[10] 00:39:00 World Math Day https://www.jsoftware.com/papers/APLQA.htm#worldmathsday
Complex Floor https://aplwiki.com/wiki/Complex_floor
[11] 00:44:50 Dyalog Time Functions https://help.dyalog.com/latest/#Language/System%20Functions/dt.htm
French Republican Calendar https://en.wikipedia.org/wiki/French_Republican_calendar
Proleptic Gregorian calendar https://en.wikipedia.org/wiki/Proleptic_Gregorian_calendar
Leap year rules https://en.wikipedia.org/wiki/Leap_year
Microsoft Date Time Picker https://learn.microsoft.com/en-us/dotnet/api/system.datetime.ticks?view=net-7.0
[12] 00:48:20 Ben Deane Calendrical C++ https://www.youtube.com/watch?v=qD8HQl1fU5Y
[13] 00:53:24 Rosetta Code https://rosettacode.org/wiki/Rosetta_Code
J Wiki https://code.jsoftware.com/wiki/Main_Page
[14] 00:59:13 Ktye https://aplwiki.com/wiki/APL%5Civ
April https://aplwiki.com/wiki/April
ArrayCast Episode #23 https://www.arraycast.com/episodes/episode23-andrew-sengul
[15] 01:00:47 Scrabble word list Collins https://en.wikipedia.org/wiki/Collins_Scrabble_Words
NWL https://en.wikipedia.org/wiki/NASPA_Word_List
Official Scrabble Players Dictionary https://en.wikipedia.org/wiki/Official_Scrabble_Players_Dictionary
[16] 01:03:50 Contact AT ArrayCast DOT com
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